ASROCK 775i48 Datasheet download pdf (Page 25)

Flexibility Option

The default value of this option is [Disabled]. It will allow better tolerance for

memory compatibility when it is set to [Enabled].

Configure DRAM Timing by SPD

Select [Enabled] will configure the following items by the contents in the

SPD (Serial Presence Detect) device.

DRAM CAS# Latency

Use this item to adjust the means of memory accessing. Configuration

options: [Auto], [2.5], [2], and [3]. Please note that the configuration

option [3] is available only for FSB 800 and FSB 533.

DRAM RAS# Precharge

This controls the idle clocks after a precharge command is issued.

Configuration options: [4 Clocks], [3 Clocks], and [2 Clocks].

DRAM RAS# to CAS# Delay

This controls the latency between the DRAM active command and the

read / write command. Configuration options: [4 Clocks], [3 Clocks],

and [2 Clocks].

DRAM Precharge Delay

This controls the number of DRAM clocks for RAS minimum. Configura-

tion options: [8 Clocks], [7 Clocks], [6 Clocks], and [5 Clocks].

DRAM Burst Length

DRAM Burst length can be set as [8] or [4].

Memory Hole

The default value of this item is [Disabled], or you may set the value of this

item as [15MB-16MB].

Init. Graphic Adapter Priority

This allows you to select [PCI/AGP] and [AGP/PCI] as the initial graphics

adapter priority. The default vaule is [PCI/AGP].

Graphics Aperture Size

It refers to a section of the PCI memory address range used for graphics

memory. It is recommended to leave this field at the default value unless the

installed AGP card’s specifications requires other sizes.

OnBoard LAN

This allows you to enable or disable the “OnBoard LAN” feature.

OnBoard AC’97 Audio

Select [Auto] or [Disabled] for the onboard AC’97 Audio feature.

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s)

inserted and assigns appropriate frequency automatically. You may also

select other value as operating frequency: [133MHz (DDR 266)],

[166MHz (DDR 333)], [200MHz (DDR 400)].

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 35 36

No comments

ASROCK 775i48 Datasheet Page 25